A back and forth motion that transfers energy from one place to another is called a(an) __.

O compression.
O oscillation
O period

50 pts plz what is the physical state of matter of baking soda.

The alkali metals (group 1) consist of lithium (3), sodium (11), potassium (19), rubidium (37), cesium (55), and francium (87). they are soft, metallic solids with low densities and low melting points. based on the data shown in figure 1, how many valence electrons do alkali metals share?

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form